The Villain wheel offers an intense amount of grip but it also has tons of roll, making it the fastest \"hybrid\" wheel on the market. The Villain features the new shark hub , which has specially designed fins to give the hub stiffness, response, balance, and roll. Don\'t sacrifice speed for grip anymore! It is also the perfect wheel for skaters who enjoy indoor and outdoor skating. Never change your wheels again! This wheel works both indoor and outdoor. Specification: 59mm x 43mm wheel with a purple shark fin hub